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                  <p class="p_Heading1"><span class="f_Heading1">Delphi Properties</span></p>



  
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                <p class="p_BodyText"><span class="f_BodyText">Enterprise Architect has comprehensive support for Delphi properties. These are implemented as Tagged Values, with a specialized property editor to help create and modify Class properties. The Class image below illustrates the appearance of a Delphi Class that has had properties added to it. These are stored as Tagged Values, and by using the </span><span class="f_MenuKeyField">Feature Visibility </span><span class="f_BodyText">element context menu option, you can display the 'tags' compartment that contains the properties. Imported Delphi Classes with properties have this feature automatically made visible for your convenience.</span></p>
<p class="p_TextIndentedL2"><img src="showtags.png" width="284" height="56" border="0" alt="ShowTags"></p>
<div style="text-align: left; text-indent: 0px; padding: 0px 0px 0px 0px; margin: 5px 0px 5px 13px;"><table cellspacing="0" cellpadding="2" border="0" style="border: none; border-spacing:0px;">
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<td valign="bottom" width="952" bgcolor="#efeff7" style="width:952px; background-color:#efeff7;"><p class="p_TiporNote" style="border-top: none; border-right: none; border-left: none;"><span class="f_TiporNote">Note:</span></p>
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<td width="952" bgcolor="#f7f7ff" style="width:952px; background-color:#f7f7ff;"><p class="p_TiporNoteText"><span class="f_TiporNoteText">When you use the </span><span class="f_UIControl">Create Property</span><span class="f_TiporNoteText"> dialog from the </span><span class="f_UIControl">Attribute</span><span class="f_TiporNoteText"> screen, Enterprise Architect generates a pair of Get and Set functions, together with the required property definition as Tagged Values. You can manually edit these Tagged Values if required.</span></p>
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<p class="p_TextIndentedL2"><img src="example%20of%20a%20delphi%20class.png" width="649" height="488" border="0" alt="Example of a Delphi Class"></p>
<p class="p_SubHeadingL2"><span class="f_SubHeadingL2">To manually activate the property editor</span></p>
<ol style="text-indent: 0px; margin-left: 48px; list-style-position: outside;">
<li value=1><span class="f_NumberedList">Ensure the Class you have selected has the code generation language set to Delphi</span></li>
<li value=2><span class="f_NumberedList">Right-click on the Class and select the </span><span class="f_MenuKeyField">Delphi Properties</span><span class="f_NumberedList"> context menu option to open the editor.</span></li>
</ol>
<p class="p_BodyText"><span class="f_BodyText">The </span><span class="f_UIControl">Delphi Properties</span><span class="f_BodyText"> editor enables you to build properties in a simple and straightforward manner. From here you can:</span></p>
<ul style="text-indent: 0px; margin-left: 30px; list-style-position: outside;">
<li><span class="f_Bulletlist1">Change the name and scope (only </span><span class="f_MenuKeyField">Public</span><span class="f_Bulletlist1"> and </span><span class="f_MenuKeyField">Published</span><span class="f_Bulletlist1"> are currently supported)</span></li>
<li><span class="f_Bulletlist1">Change the property type (the drop-down list includes all defined Classes in the project)</span></li>
<li><span class="f_Bulletlist1">Set the </span><span class="f_MenuKeyField">Read</span><span class="f_Bulletlist1"> and </span><span class="f_MenuKeyField">Write</span><span class="f_Bulletlist1"> information (the drop-down lists have all the attributes and operations from the current Class; you can also enter free text)</span></li>
<li><span class="f_Bulletlist1">Set </span><span class="f_MenuKeyField">Stored</span><span class="f_Bulletlist1"> to </span><span class="f_MenuKeyField">True</span><span class="f_Bulletlist1"> or </span><span class="f_MenuKeyField">False</span></li>
<li><span class="f_Bulletlist1">Set the </span><span class="f_MenuKeyField">Implements</span><span class="f_Bulletlist1"> information</span></li>
<li><span class="f_Bulletlist1">Set the </span><span class="f_MenuKeyField">Default</span><span class="f_Bulletlist1"> value, if one exists.</span></li>
</ul>
<p class="p_TextIndentedL2"><img src="delphipropertisdialog.png" width="449" height="450" border="0" alt="DelphiPropertisDialog"></p>
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<td valign="bottom" width="952" bgcolor="#efeff7" style="width:952px; background-color:#efeff7;"><p class="p_TiporNote" style="border-top: none; border-right: none; border-left: none;"><span class="f_TiporNote">Notes:</span></p>
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<td width="952" bgcolor="#f7f7ff" style="width:952px; background-color:#f7f7ff;"><ul style="text-indent: 0px; margin-left: 14px; list-style-position: outside;">
<li><span class="f_TiporNoteText">Public properties are displayed with a '</span><span class="f_TiporNoteText" style="font-weight: bold;">+</span><span class="f_TiporNoteText">' symbol prefix and published with a '</span><span class="f_TiporNoteText" style="font-weight: bold;">^</span><span class="f_TiporNoteText">'. </span></li>
<li><span class="f_TiporNoteText">When creating a property in the </span><span class="f_UIControl">Property Wizard</span><span class="f_TiporNoteText"> (accessed through the </span><span class="f_UIControl">Attributes</span><span class="f_TiporNoteText"> dialog), you can set the scope to </span><span class="f_MenuKeyField">Published</span><span class="f_TiporNoteText"> if the property type is </span><span class="f_TiporNoteText">Delphi</span><span class="f_TiporNoteText"> - see the example below.</span></li>
</ul>
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<p class="p_TextIndentedL2"><img src="propertydetails.png" width="307" height="162" border="0" alt="PropertyDetails"></p>
<p class="p_SubHeadingL2"><span class="f_SubHeadingL2">Limitations</span></p>
<ul style="text-indent: 0px; margin-left: 30px; list-style-position: outside;">
<li><span class="f_Bulletlist1">Only </span><span class="f_MenuKeyField">Public</span><span class="f_Bulletlist1"> and </span><span class="f_MenuKeyField">Published</span><span class="f_Bulletlist1"> are supported</span></li>
<li><span class="f_Bulletlist1">If you change the name of a property and forward engineer, a new property is added, but the old one must be manually deleted from the source file.</span></li>
</ul>




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